Improved chah-link



NPETERS, PHOTO-LITHOGRAPHER, WASHINGTON. D, C. u

@uiten gisten gutem @Hirsi SAMUEL vANSToNE, or PEovIDENoE'RHoDE ISLANuASSIGNoR To HIM- SE'LE AND' JoHN STEWART, oE SAME PLAGE.

Latas Patent No. 76,552, ma Ama 7, 1868.

IMPEOVED CHAIN-LINE.

TO ALL WHOM IT MAY CONGERN: l

Be it known that I, SAMUEL VANSTONE, of thecity and county of Providence, in the State of Rhode Island, have invented a new and useful Improvement in Connecting-Links for Chains; and I doihereby declare that the following specication, taken in connection with the drawings, is a full, clear, andlexact description thereof.

Figure 1 exhibits the two parts of the link placed in'rcadiness to be united. i i

Figures 2 and 3 exhibit the respective halves. l l

The improv-ement described in the Letters Patent of the United States, No. 70,380, granted to myself and John Stewart, October 29, 1867, consists iu making'the two divisions of a connecting-link, with a central tongue,

lwith chamfered ends, so that, when the two partsof the link are placed in their proper relation, the ends of such tongues will overlap and form'a cross-bar. 'lhe method of constructing the link described in the patent referred to involves the use of a rivet to unite theoverlapping ends of the tongues, and which rivetvis the only means for preventing the two halves of the link from separating.

It does not always happen on shipboard, and incase of accidents, where the occasion for the use of this class of links most frequently arises, theta rivet is at hand,'or if supplied, as itis intended to be with the link,

that the tools'requisite for closing its-down are readily accessible.

It is the purpose, therefore, of the present invention to further improvethis description of link by seconstructing it that the two halves composing it can be more convcniently united together, and without danger of becoming easily separated. i

In the accompanying drawings itwiil be seen that each division of the link is furnished, as in the case ofthe link described in the Letters Patent before referred to, with a central tongue, a. The ends of such tongues are` chamfered, but on the opposite sides respectively vou which vthey are chamfered in theinstance shown in my previous invention, so that it Iis, in view of the dove-tail joints b b out inl the coinciding faces ofl the two divisions-of the link, impossible to superpose over upon the other, as could readily be done were the overlapping ends of the tongues chamfered the, opposite way. To enable, however, the two divisions to be brought together into their proper relation, one ear, A, of each division respectively is bent upward,as shown, when -the article is manufactured, and in that -condition should be sofurnished foruse. Such bending back of the ears,'as will be readily understood,.will enable the chamfered end of one of the tongues to be slipped under the cham- .fered end of the other, which cthenwisc could not be done, when, the two parts of the link being properly placed,

a blow upon each of the ears, so bent up, will cause the dove-tail joints I1 Zi to lock, and the two parts of the link will be firmly united. v 4

This method of construction is applicable to links made of malleable metal, but as such material ought always to be employed, this fact 'constitutes-no important objection in comparison with the othcradvantages of ,convenience and strength which arc secured.

What I claim as my invention, and desire to secure by Letters Patent, is

Constructing the t'wovdivisionsof a connecting-link, in the manner substantially as described, for the puri poses specified.

' SAMUEL' VANSTONE.

Witnesses:

BENJ. F.' THUnsroN, J. M. Coscnovn. 

